The room temperature visible photoluminescence in g- As₂S₃ and Ge-based glasses

Abstract

PL radiation from long term aged fractured surfaces of GeS 2-based glasses was assigned to the surface contaminant effect from native oxidized layer, which might have formed in the air. When have been used for PL measuring the freshly fractured surface of g-GeS 2 (T 3 V 2) all PL peaks which was connected with GeO x species where disappeared in PL spectrum.

Metallic nanoparticles (Cu, Ag, Au) in chalcogenide and oxide glassy matrices: comparative assessment in terms of chemical bonding

“…Undoubtedly, just this impurity interaction is responsible for As 2 O 3 extraction at the surface of g-As 2 S 3 under prolonged γ-irradiation in ambient conditions [36,37]. Similar changes occur also in Ge-based ChG affected by cw laser illumination [38].…”